Operation Manual

6 720 645 349 (2010/09)
66 | Energy saving tips
10 Energy saving tips
• With weather-compensated control, the flow
temperature is controlled in accordance with
the set heating curve: The colder the outside
temperature, the higher the flow temperature.
Save energy: Set the heating curve as low as
possible in accordance with the building's
insulation and the system conditions
(Æ chapter 8.3 from page 47).
• Underfloor heating:
Never set the flow temperature higher than the
maximum flow temperature recommended by
the manufacturer (e.g. 60 °C).
• Make effective use of the temperature levels
and switching points by setting them to suit
the preferences of the occupants.
– Comfort = Comfortable living
environment
– Economy = Active living environment
– Frost = Away from home or asleep
• Set the thermostatic valves in all rooms so
that the required room temperature can be
achieved. Only increase the temperature
levels if the temperature has not reached after
some time (Æ chapter 6.3.2 on page 33).
• Much energy can be saved by reducing the
room temperature via economy phases.
Reducing the room temperature by 1 K ( °C)
enables up to 5 % energy to be saved.
It is not recommended to let the room
temperature of heated rooms fall below
+15 °C during the daytime, otherwise the
cooled-down walls continue to radiate cold
and the room temperature rises higher,
leading to higher energy consumption than if
an even heat supply is applied.
• Good thermal insulation of the building: the
set temperature for Economy is never
reached. Nevertheless energy is being saved
as the heating system stays off.In that case set
the switching point for Economy to an earlier
time.
• Don't keep windows slightly open for
ventilation. This leads to a constant extraction
of heat from the room without noticeably
improving the ambient air in the room.
• Vent briefly but intensively (open window
fully).
• When ventilating, turn off the thermostatic
valve or set the mode selector to Frost.
• Make effective use of the temperature levels
and switching times for DHW heating by
setting them to suit the preferences of the
occupants.
Solar optimisation
Activate the Optimizing influence DHW by
setting a value between 1 K and 20 K
Æ chapter 6.6 on page 39. If the influence of the
Optimizing influence DHW is too great, reduce
the value in stages.
Activate the CH circuit optimizing influence by
setting a value between 1 K and 5 K
Æ chapter 6.6 on page 39. If the influence of the
CH circuit optimizing influence is too great,
reduce the value in stages.